Abstract:

In the process of the construction of the new River mine, the series of the related pressure behaved very strongly when the excavation roadway driving through the faults. The main roadway could one-time excavated the faults zone successfully with the joint support of the bolting and metal mesh, the bolting and shotcreting and the fully enclosed u-steel support, after injecting the slurry into the advanced boreholes to reinforce the self-supporting capability of the surrounding rocks. It had been verified a safe and cost-effective method in the new river colliery and can also maintained the stability of the excavation roadway.

Key words: the main roadway, the fracture zone of faults, the initiative of enhanceing support, the fully enclosed u-steel support